Build to Suit Data Center
What Build to Suit Means, How the Lease Works, Who Builds Them and What They Cost
A build to suit data center is built for a named tenant under a lease signed before construction. Whether one works comes down to the tenant's credit, the density and a delivery date the power can meet. We advise on all three.
Scope My Build to SuitDeveloper engagements from $45,000. Tenants placing a requirement pay nothing; the provider pays us.
A build to suit data center is a facility constructed to a named tenant's specification, under a lease agreed before the building is finished. The developer funds and delivers; the tenant commits to a long term, usually 10 to 20 years, at a rent that returns the developer's cost plus a margin. It is the structure most developers prefer, because the tenant is known before the capital is committed, and it is how most new capacity now gets built: across the primary North American markets, 80 percent of the data center capacity under construction was already preleased in mid-2026. For the tenant, a build to suit is the large-scale alternative to leasing colocation, a building designed around its own requirement, which is why it is sometimes called build to suit colocation. It produces the highest rent per kilowatt of the structures available to a developer and requires the most capital. Two things decide whether one is achievable: the tenant's covenant, because the lease is what the developer's financing is secured against, and the density specification, because a requirement at 30 kW a rack and one at 130 kW produce different buildings.
Metro Colo Advisory ranges from published equipment lead times and industry development timelines, September 2026. Bar length shows the upper end of each range. Construction is rarely the long pole. Free to cite with a link to this page.
Send the site, the power position and the requirement or tenant in view. You'll hear back within 24 hours from the principal who would run the engagement, with a first read on whether a build to suit is achievable and what it would take.
What Build to Suit Means
The build to suit meaning in commercial real estate is simple: a developer constructs a property to a specific tenant's requirements, usually under a long-term lease signed before construction begins. The tenant gets a building designed around its operations without owning it or funding it; the developer gets a committed tenant before spending the capital. Build to suit real estate is common for warehouses, distribution centers, retail and corporate offices, and the developer typically recovers the cost of construction through the rent over a long term, often with the tenant responsible for taxes, insurance and maintenance.
A build to suit data center is the most technically demanding version of the same idea. The difference is what the tenant specifies. A warehouse tenant specifies clear height and dock doors; a data center tenant specifies contracted megawatts, density per rack, cooling architecture, floor loading, redundancy and fiber route diversity, and those decisions set most of the cost. That is why data center build to suit agreements run longer, cost more per square foot and carry more risk for both sides than any other build to suit.
Build to Suit vs Powered Shell vs Speculative Development
A developer holding a site with power has three routes. They differ in when the tenant appears and who carries the risk in between.
| Build to suit | Powered shell | Speculative turnkey | |
|---|---|---|---|
| When the tenant commits | Before construction | Before or during | After completion |
| Who specifies the building | The tenant | The developer, to market standards | The developer, to a forecast |
| Who funds the fit-out | Developer, recovered in rent | Tenant | Developer |
| Developer capital at risk | Committed against a signed lease | Lower, but speculative | Highest, and speculative |
| Lease term | 10 to 20 years | 10 to 20 years | Shorter, and variable |
| Rent per kilowatt | Highest | Lowest | Market at lease-up |
| Main risk | Construction cost, delivery date and tenant credit | Finding a tenant at all | Lease-up duration |
How a Data Center Build to Suit Works
Letter of intent
The tenant states the requirement in megawatts, density, timeline and location; the developer confirms the site can serve it. Neither party is committed, but the specification starts to firm up.
Specification and cost
The tenant's technical requirements become a design and a construction budget. This is where most build to suit arrangements succeed or fail, because the tenant wants a facility built for its hardware and the developer wants a building with value if the tenant leaves in fifteen years.
Lease negotiation
Rent, term, delivery date, remedies and credit support are agreed. See the lease section below.
Construction
The developer builds; the tenant inspects. Change orders are the most common source of dispute, because a tenant whose hardware roadmap moves will want the building to move with it.
Commissioning, delivery and commencement
The facility is proven under load, then delivered. Rent starts on delivery, or on a fixed date regardless of delivery, depending on how the lease allocates delay risk.
The first two stages decide the other three. Once the lease is signed, the density, the delivery date and the cost allocation are fixed, and every later change is a change order.
The Build to Suit Lease: Rent, Term and Risk
A build to suit lease differs from an ordinary data center lease because there is no existing building and no comparable market rent. The agreement has to price a facility that does not exist yet, and allocate the risks of building it.
| Term | How it usually works | What to watch |
|---|---|---|
| Rent | Set as a yield on the developer's total delivered cost rather than a market rate | What counts as delivered cost, and who bears overruns |
| Term | 10 to 20 years, with renewal options | Renewal rent mechanics; the tenant's hardware will change several times within the term |
| Escalation | Fixed annual increases or CPI-linked | Compounding over a long term; negotiate it with the rent, not after |
| Delivery date and remedies | A commercial operation date, with rent abatement, liquidated damages or a termination right at an outside date | The date should mean the end of commissioning, not construction; that gap is two to four months |
| Cost overruns and change orders | Allocated by category: developer carries base scope, tenant carries its own changes | Equipment escalation on long-lead items, and who pays when the tenant's specification moves |
| Credit support | Guarantee, letter of credit, deposit or prepaid term where the tenant is below investment grade | The entity signing the lease, not the brand behind it |
| Expansion rights | Options on adjacent capacity or future phases | Only as good as the contracted power behind them |
| Operating costs | Often triple net for the building, with power passed through | Which systems the developer maintains, and the service levels behind them |
The general data center lease terms, power floors, ramps and escalators, are covered on the data center lease guide and wholesale colocation.
Build to Suit Construction: How Long It Takes
A build to suit typically runs 18 to 30 months from signed lease to delivery, but construction is rarely the constraint. Three things usually set the schedule:
Power
Berkeley Lab puts the median time from interconnection request to operation at more than four years, and large-load tariffs now add studies, deposits and collateral. A queue position is not power, and the substation behind it has its own timeline. See powered land.
Equipment
Large substation transformers commonly take two years or more from order, and switchgear 40 to 65 weeks. Long-lead equipment often has to be ordered before the lease is signed, which puts the developer at risk on equipment it cannot use if the tenant walks.
Entitlement
Community opposition had blocked an estimated $18 billion of US data center projects and delayed another $46 billion by Data Center Watch's 2025 report, and local fights have grown since. A planning recommendation can be reversed by a council vote.
A site with entitlement and interconnection already secured can deliver in two to three years. A site starting from raw land is realistically five or more. That gap is most of what decides whether a build to suit is achievable at all, and it is why a developer with a credible tenant and a shovel-ready site holds something scarce.
What commissioning means for the delivery date
Data center commissioning proves the facility works under load before anything is installed in it, in five levels: factory testing of components, delivery inspection on site, pre-functional checks of each system, functional testing of each system on its own, and integrated systems testing, where the whole facility runs under simulated load with utility power pulled. A lease that commits to a delivery date is committing to the end of level five, not the end of construction. That distinction is worth two to four months, and it is frequently missed in negotiation.
What a Tenant Specifies
Power
Contracted capacity with an energization date, redundancy specified against a tier standard, and the path to expansion. Utility indications are not enough at this stage.
Density
Kilowatts per rack, which decides almost everything else. Rack-scale AI systems draw about 120 to 140 kW today, and NVIDIA's published roadmap runs to roughly 600 kW per rack later in the decade.
Cooling
Whether facility water reaches the white space. Air cooling tops out near 30 to 35 kW per rack, so anything above that specifies liquid cooling at design rather than as a retrofit.
Floor loading
ANSI/TIA-942 sets 150 psf as a minimum and 250 as recommended; Intel recommends 350 for high density. Rack-scale deployments weigh roughly 1.5 tons per rack.
Connectivity
Physical route diversity matters more than carrier count. Two providers on one path is a single point of failure.
Expansion rights
Whether the tenant can take more capacity, on what terms and by when. An expansion right that cannot be met is worse than none, because it creates an obligation the developer cannot discharge.
How Density Changes the Building
Take a requirement for 7 MW of IT load. At 30 kW per rack that is about 230 racks; at 130 kW per rack, about 54. Same power, and broadly the same rent, since the lease prices per kilowatt. But the second building needs a fraction of the white space, several times the floor loading, liquid delivered to every rack rather than air to a room, and a different electrical distribution. They are not the same building with different equipment in it; they are different buildings. That is why a tenant who firms up density late has effectively asked for a redesign, and a developer who agrees a build to suit before density is fixed has agreed to an unknown cost. The most common version is a tenant specifying for today's hardware while its roadmap moves denser within the lease term. Settling the number early, with headroom for the next generation, is worth more than any other clause in the agreement.
MCA calculation, round numbers. The denser building needs a fraction of the white space, several times the floor loading and a different electrical and cooling design. Free to cite with a link to this page.
That is when this analysis is worth most. Send the requirement or the site, and we will tell you whether the specification, the power schedule and the delivery date line up before anyone commits to them.
Build to Suit Economics
What it costs
All-in data center construction runs $8.9 million to $23.3 million per MW in the US and Canada, according to Cushman & Wakefield's 2026 cost guide, with AI-ready facilities at the top of the range. Electrical infrastructure alone is 40 to 45 percent of hard costs. A build to suit developer carries all of it, which is why the structure needs the most capital. See data center cost.
What it returns
The return is contracted: rent set as a yield on delivered cost means the developer knows the return before breaking ground rather than discovering it during lease-up. For reference, Digital Realty guided to an 11.5 percent average expected stabilized yield on its development pipeline in mid-2026.
Where the profit sits
In the exit. A completed facility on a fifteen-year lease to a creditworthy tenant trades at a materially lower capitalization rate than a speculative building, and that spread is where most of the development profit is made.
Yield on cost is the figure most developers want and the hardest to source, because build to suit rent is negotiated rather than observed. We model it in ranges, with the assumptions stated and sensitivity shown on construction cost, delivery timing and tenant covenant.
Credit is the constraint nobody plans for
A build to suit lease is a fifteen or twenty year receivable, and it is what the developer's financing is secured against, which makes the tenant's covenant as important as the specification. Lenders underwrite the entity signing the lease, not the business behind it; a well-funded company leasing through an unrated subsidiary is a different proposition than the parent name suggests, and that gap has ended more build to suit conversations than any technical issue. Where a covenant sits below investment grade, a larger deposit, a letter of credit, a prepaid term or a parent guarantee can bridge it. Establishing which a tenant can offer is worth doing before the specification is agreed, not after.
We model capital, rent as a yield on cost, delivery risk and exit value for build to suit, powered shell and speculative development against your actual basis, with the tenant's credit in the model from the start.
From $45,000. Every engagement is scoped to the question in front of you, so the fee is set once we know what the work needs to answer.
Build to Suit Developers
Most build to suit data centers are delivered by developers in three groups, and a tenant with a large requirement usually talks to more than one. See the provider comparison and wholesale colocation for the operators themselves.
Wholesale and hyperscale developers
Firms built for multi-megawatt tenants, such as Vantage, Aligned, QTS, STACK, CyrusOne, Compass and Sabey. They build to suit as their core business, with standard designs they adapt, and they bring capital and delivery experience.
Large operators
Equinix and Digital Realty build to suit alongside their colocation businesses, usually on their own campuses, which brings interconnection and a proven operating platform.
Industrial and land developers
A growing group entering data centers with land and power positions but less data center experience. They often offer flexibility on terms and site, and benefit most from independent advice on specification and tenant fit.
Several megawatts, AI density, or a date the market says is impossible. We run the developer and operator search for you: which can deliver your megawatts and density, on what date, on what lease terms, and whether the date is real. We took a live multi-megawatt, liquid-cooled requirement to more than ten North American operators this year, so we know which ones can. For placements, the provider pays us, not you.
When a Build to Suit Is the Right Structure
It fits when
A credible tenant exists and will commit before construction; the site can meet the specification that tenant actually wants; and the developer can carry construction risk, including cost escalation on long-lead electrical equipment.
It fits less well when
The tenant's covenant will not support a fifteen-year lease, the requirement is too small to amortize the specification cost, or the tenant's hardware roadmap is moving faster than the building can be designed. That last one has become common.
What locks at design
Floor loading, slab-to-slab clear height, and whether the cooling loop reaches the white space. In a build to suit they are agreed with the tenant rather than guessed, which is the structure's main advantage; the risk is designing so tightly that the building has no residual value if the tenant leaves.
Five Common Mistakes
Treating a letter of intent as a commitment
Specification work is expensive, and a tenant who walks after design leaves the developer with drawings for a building nobody wants.
Designing with no residual value
A facility built entirely around one tenant's hardware is hard to re-let. The best designs meet the requirement while staying serviceable to a broader tenant set.
Underwriting the brand rather than the entity
The name on the requirement and the name on the lease are often different, and only one of them matters to a lender.
Granting expansion rights without power behind them
Utility studies for additional capacity can run one to two years; an expansion right that cannot be met is a liability.
Committing a date the power schedule cannot meet
The commercial operation date is the hardest number in the agreement. It has to be achievable on the day the lease is signed, against a queue and a supply chain the developer does not control.
What This Page Cannot Tell You
Whether your site meets a tenant's specification
That comes from the structural, electrical and mechanical drawings, measured against what a named tenant actually requires.
Which tenants would consider your site
That requires knowing current requirements in your market, their density, their timeline and their covenant. None of it is published.
What rent would return your cost
Build to suit rent is negotiated, and depends on your delivered cost, your required return and the tenant's alternatives at the time.
What any of it returns
Yield on cost depends on your land basis, what you have committed, your capital position and your hurdle rate.
In writing, at a fixed fee agreed before work starts, typically $45,000 to $195,000 depending on scope. We design nothing and operate nothing, and our consulting is paid by the client, not by any provider.
A full engagement covers the building envelope (what the site can serve at what density), operator and tenant fit, market context, yield on cost across build to suit, powered shell and speculative development, connectivity, and a specification and recommendation sequenced against your construction timeline. For tenants, we run the other side: which developers can deliver the requirement, on what terms, and whether the delivery date is real. Separately, we place enterprise and AI requirements with operators nationally, which is how we know what tenants at each density tier actually ask for. See data center consulting and due diligence.
Frequently Asked Questions
What does build to suit mean?
In commercial real estate, build to suit means a developer constructs a property to a specific tenant's requirements, usually under a long-term lease signed before construction. The tenant gets a building designed around its operations without funding it; the developer gets a committed tenant before spending the capital. It is common for warehouses, retail and offices, and data centers are its most technically demanding form.
What is a build to suit data center?
A facility constructed to a named tenant's specification under a lease agreed before the building is finished. The developer funds and delivers it; the tenant commits to a long term, usually 10 to 20 years, at a rent that returns the developer's cost plus a margin.
What is a build to suit lease?
A lease signed before a building exists, under which the developer builds to the tenant's specification and the tenant commits to a long term. Rent is usually set as a yield on the developer's delivered cost, and the lease allocates construction cost overruns, delivery delays, change orders and credit support between the parties.
What is the difference between build to suit and powered shell?
A build to suit has a tenant before construction and is designed around its requirement, with the developer funding the full fit-out and recovering it in rent. A powered shell delivers the building, power and cooling plant with the tenant funding the interior, and can be built speculatively. Build to suit produces higher rent per kilowatt and needs substantially more developer capital.
How is rent set in a data center build to suit?
Usually as a yield on the developer's total delivered cost rather than a market rate, because there is no comparable market for a purpose-built facility. The lease normally includes mechanisms for cost overruns, delivery delays and specification changes.
How long does a build to suit data center take?
Typically 18 to 30 months from signed lease to delivery when power and entitlement are already secured; from raw land, five years or more. Construction is rarely the long pole: power interconnection, permitting and equipment lead times set the schedule.
Who are the build to suit developers for data centers?
Three groups: wholesale and hyperscale developers such as Vantage, Aligned, QTS, STACK, CyrusOne, Compass and Sabey; large operators such as Equinix and Digital Realty, usually on their own campuses; and industrial and land developers entering the sector with land and power positions.
Who takes the risk in a build to suit?
The developer carries construction cost and delivery risk; the tenant carries the risk of committing to a facility for fifteen or twenty years while its requirements change. The lease allocates delay and overrun risk between them, and that allocation is usually the most negotiated part of the agreement.
What credit does a tenant need for a build to suit?
Stronger than for a colocation contract, because the lease is what the developer's financing is secured against. Below investment grade, the usual bridges are a larger deposit, a letter of credit, a prepaid term or a parent guarantee.
What is build to suit colocation?
The same arrangement seen from the tenant's side: instead of leasing space in an existing colocation facility, the tenant commits to a long lease on a facility built to its specification. It suits requirements too large or too specialized for existing space, typically several megawatts and up, or densities existing halls cannot support.
What is the difference between build to suit and speculative development?
A build to suit is built for a tenant who has already signed; speculative development is built first and leased afterward. With 80 percent of primary-market capacity under construction already preleased in 2026, most new data center capacity is effectively build to suit or preleased before delivery.
Can a build to suit be re-let if the tenant leaves?
Sometimes, depending on how tightly the building was specified. A facility designed around one tenant's hardware is hard to re-let, which is why residual value should be considered during specification rather than after.
Decide Before the Specification Is Agreed
If you hold a site and are weighing a build to suit against building speculatively, or you are a tenant with a requirement too large or too dense for existing space, send the site or the requirement. You'll hear back within 24 hours from the principal who would run the engagement, with a first read on whether a build to suit is achievable and what it would take. If it is the wrong structure, we say so.
Get those three right before the lease is signed and the rest of the agreement follows.
Developing and investing: data center developers, data center valuation, data center consulting, powered shell, powered land, due diligence, data center financing and site selection.
The numbers and the lease: data center cost, data center lease, wholesale colocation and data center tiers.
Density and markets: AI and GPU colocation, direct to chip cooling, Northern Virginia, Atlanta, Dallas and Chicago.
